

1. 
Use estimation to place the decimal point in the product 18.7 × 21 = 3927. 


A. 
39.27 
B. 
392.7 


C. 
3927.0 
D. 
3.927 


Hint 


2. 
A dollar bill is 6.125 inches long. Caitlin used it as a measuring device and found that her shelf was 5 times the length of the dollar bill. How long is her shelf? 


A. 
30.625 in. 
B. 
306.25 in. 


C. 
30.605 in. 
D. 
306.05 in. 


Hint 


3. 
Antonio earns $7.65 per hour. How much money does he make if he works 8 hours? 


A. 
$60.80 
B. 
$6.12 


C. 
$612.00 
D. 
$61.20 


Hint 


4. 
Find 8k if k = 0.5238. 


A. 
4.1904 
B. 
3.483 


C. 
5.285 
D. 
4.9231 


Hint 


5. 
Find 4 × 0.0034. 


A. 
0.1216 
B. 
0.0126 


C. 
0.0136 
D. 
1.36 


Hint 

